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Finding the Fourth Proportional to 35,358.40, 52,951.20 and 16,868.80

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Solution

The fourth proportional to 35,358.40, 52,951.20 and 16,868.80 is: 25,261.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,358.40 : 52,951.20 = 16,868.80 : x
  2. Step 2: Convert to fraction form
    35,358.40/52,951.20 = 16,868.80/x
  3. Step 3: Cross multiply
    35,358.40x = 52,951.20 × 16,868.80
  4. Step 4: Simplify right side
    35,358.40x = 893,223,202.56
  5. Step 5: Solve for x
    x = 893,223,202.56/35,358.40
  6. Step 6: Final answer
    x = 25,261.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.